Miami International in March 2024

66.9%departed on time

BTS: A flight is counted as on time if it arrived less than 15 minutes after its scheduled time. Only carriers with at least 0.5 percent of domestic scheduled passenger revenue report.

In March 2024, reporting carriers scheduled 10,533 domestic departures from Miami International (MIA). 66.9% left less than 15 minutes late and 64.6% reached their destination on time; 2.1% were cancelled.

Nationally that month, 78.5% of flights departed on time and 78.3% arrived on time, so MIA departures were 11.6 points below the national departure figure.

Flights arriving at MIA that month were on time 69.2% of the time (10,524 scheduled arrivals).

Of the delay minutes that carriers assigned to a BTS cause category that month, late-arriving aircraft 44%, air carrier 30% and national aviation system 20%.

On time 64.6%
Arrived 15+ minutes late 33.0%
Cancelled 2.1%
Diverted 0.2%

Every scheduled departure from MIA in March 2024, judged by arrival at the destination.

March 2024 against a year earlier, the airport's year and the nation

Measure	Mar 2024	Year earlier	MIA, 12 months to Jul 2026	All reported flights, Mar 2024
Departed on time	66.9%	—	72.9%	78.5%
Arrived on time	64.6%	—	72.3%	78.3%
Cancelled	2.1%	—	1.6%	0.9%
Average departure delay (late minutes only)	28.7 min	—	19.7 min	15.7 min
Scheduled departures a day	351	—	305	19,726
Scheduled departures	10,533	—	111,186	591,767

Airlines that month

Reporting carrier	Flights	Share	On time	Avg arrival delay	Cancelled
AA American Airlines	5,240	50%	61.2%	27.6 min	2.8%
MQ Envoy Air	1,387	13%	70.3%	13.2 min	1.2%
DL Delta Air Lines	1,036	10%	68.1%	26.6 min	0.5%
UA United Airlines	709	7%	68.4%	26.6 min	0.6%
WN Southwest Airlines	690	7%	68.4%	19.9 min	1.7%
NK Spirit Airlines	667	6%	69.4%	12.9 min	1.8%
F9 Frontier Airlines	395	4%	64.1%	28.4 min	1.5%
B6 JetBlue Airways	254	2%	57.5%	37.0 min	4.7%
YX Republic Airline	93	1%	68.8%	15.3 min	8.6%
AS Alaska Airlines	62	1%	61.3%	26.6 min	3.2%

Busiest routes that month

Route	Cities	Flights	On time	Avg arrival delay	Cancelled
MIA–ATL	Miami to Atlanta	624	66.0%	27.3 min	1.9%
MIA–JFK	Miami to New York	534	64.4%	27.5 min	2.6%
MIA–LGA	Miami to New York	522	64.4%	22.2 min	1.9%
MIA–ORD	Miami to Chicago	420	67.9%	17.2 min	1.2%
MIA–DFW	Miami to Dallas/Fort Worth	419	55.8%	31.3 min	2.9%
MIA–EWR	Miami to Newark	412	72.6%	16.3 min	1.7%
MIA–BOS	Miami to Boston	344	66.9%	22.3 min	2.6%
MIA–LAX	Miami to Los Angeles	344	64.8%	32.8 min	0.6%
MIA–DCA	Miami to Washington	341	69.2%	16.6 min	3.5%
MIA–CLT	Miami to Charlotte	309	73.1%	10.4 min	1.6%
MIA–MCO	Miami to Orlando	306	65.4%	18.3 min	1.6%
MIA–PHL	Miami to Philadelphia	304	62.5%	22.2 min	2.6%

By scheduled departure hour

On-time share:under 62%6270768288% and over

Share of departures that left less than 15 minutes late, by scheduled hour (local time), March 2024.

Delay causes

BTS cause category	Share of delay minutes	National, Mar 2024	Minutes
Air carrier	30.2%	32.1%	90,583
Late-arriving aircraft	44.1%	42.1%	132,056
National Aviation System	20.3%	21.4%	60,884
Extreme weather	5.1%	4.2%	15,156
Security	0.3%	0.2%	938

299,617 delay minutes on 3,476 flights that arrived 15 or more minutes late and carried a cause report. Carriers assign the categories; see what each category means.

Questions and answers

How many flights left MIA on time in March 2024?

66.9% of 10,533 scheduled domestic departures left less than 15 minutes late, and 64.6% reached their destination on time. The national figures that month were 78.5% and 78.3%.

How does that compare with a year earlier?

March 2023 is outside the 36 months on file, or the airport had too few reported flights that month.

Provenance

Source: Bureau of Transportation Statistics, Reporting Carrier On-Time Performance, file for March 2024; public domain. Domestic scheduled flights by reporting carriers, totals and averages only. The site's data runs through July 2026. Full record for MIA · methodology · corrections.